Centrifugal liquid-purifier.



No. 637,729. Patented Nov. 2|, :89s.

w. GoLnswonTHY.

CENTRIFUGAL LIQUID PURIFIER.

lication 2 led Jim. 1S, 1899. Renewed *Oct 6,1899.)

oooooooo il mm Minimum M UNITED ISTATES PATENT OFFICE.

WILLIAM GOLDSWOR'IHLOF MOLINE, ILLINOIS, ASSIGNOR OF ONE-THIRD TO EDWARD II. SLEIGI-IT, OF SAME PLACE.

CENTRIFUGAL LIQUID-PUFHFIER.

'SPECIFIcALioN farming partof Letters Patent No. 637,729, dated November- 21,1899. Application filed January 18, 1899. Renewed October 26; 1899. Serial No. 734,882.` KNO model.)

T0 a/ZZ whom, t uta/y concern: y

Be it known that I, WILLIAM GoLDswoR- THY. of Moline, inthe county of Rock Island l and State of Illinois, have invented certain new and useful Improvements in Centrifugal Liquid-Purifiers; and I hereby declare that the following is a full, clear, and exact description thereof, Vreference being had tothe accompanying drawings, which form part of this specification. A

This invention is an improvement in centrifugal liquid-purifiers for purifying milk, Water, and other liquids by centrifugal action.

It consists in the novel constructions and combinations of parts hereinafter claimed, and the accompanying drawings illustrate a purifier constructed in accordance with my invention and adapted to bel operated by power, being of large size.

In the drawings, Figure l-is a-vertical central section of the purifier. Fig. 2 is a reduced side elevation thereof. Fig. 3 is a top plan view, and Fig. 4 a detail transverse section on line 3 3, Fig. 2.

Referring to the accompanying drawings, A designates the base-casting, having a basin A at its upper end and provided with bearings for a vertical shaft B, which can be rotated at high speed `by any -suitable means, as by a belt applied to the pulley B. The upper end of shaft B projects through the journal-bearing As in the center of the basin A on top of the base and carries the purifiercylinder.

The separator consists `of a conical baseplate C, provided with a hub c, fast to the upper end of shaft B, and with a -peripheral iiange C', which is preferably interiorly threaded and is engaged by the lower end of a cylinder D, forming the main body. The upper end of cylinder D is closed by a conical top E, through the apex E of which passes a tubular shaft F, the lower end of which is securely connected to the hub c of the baseplate C. In large-sized machines shaft F has a bearing in a yoke-bar G, fastened to side upright-s H H of the main frame, which are secured at the lower ends to brackets A2 on the sides of basin A. Bar Gr is secured to the uprights H by detachable hand-screws h to facilitate the removal of the cylinder for repairs, nc. d l.

. A feed-funnel g is supported on the yoke Gr and depends into the upper end of the tubular shaft F, so as to supply the liquid thereto. In the lower end of shat'tF are apertures f, through which theinflowing liquid enters the cylinder. The apex E of top E is cylindrical and preferably ex'teriorly threaded, and on it is secured a` cap-nut-I, fitted closely around the shaft F, and above this cap-nut, screwed onto the threaded end of shaft F, is a locknut F. The cylinder D may be'connected to the base C and top E in any suitable liquide tight manner. As shown, it is screwed into the iange'c of base-plate C and is rabbeted into the top E, a suitable gasket being placed in the rabbet to make the joint liquid-tight. In the sides of nutIare perforations t, adapted to register'with perforations ein part E'. By adj ustingthe lnut I the apertures't' e can be moved partially or-wholly out of register so that they can be partially or wholly closed. In this manner the liquid being treated can be subjected to a more or less violent or continued centrifugal action in its passage through the cylinder as may be necessary to properly purify the liquid. Liquids vary in the proportion of impurities contained therein. If the impuritieslare coarse, they can be more rapidly extracted, or if the impurities are very finesuch as are found in muddy water, for instancea more violent orlonger-continued centrifugal action is required to accomplish its purification. By reducing the size of the escape-apertures a longer centrifugal action is obtained, as the liquid is retained in the cylinder for a longer period.

Screwed onto the lower end of cylinder D, just above the iiange C', is a locking-band or valve-ring .I ,provided with apertures j, adapted to register with apertures OZ in the cylinder when the band is properly adjusted. During the separating or purifying process the band .I is shifted so that the apertures d j do not register and no liquid can escape therethrough.

within the Cylinder D and attached to the walls thereof are annular inwardly-projecting flanges D', the number of which vary ac- IOO cording to the size and capacity of the separator. y These flanges may be concaved on their under sides or beveled downwardly and inwardly, so as to form pockets thereunder, in which impurities will be trapped and retained during the separating process. The

lighter impurities are flung outward against,

the walls of the cylinder by the centrifugal actionl and tend to rise therein by the natural flow of the liquid upwardly tothe outlets e c'. The cylinder D 'may also be provided' with one or more interior vertical blades D2 in its lowerV end 4to impart a quick and rapid ceutrifugal motion tothe iiuid. The cylinder is 4A' through thecock a.

Ainclosed in a casing the' sides of which are formed by a casing K and the bottom by the basin A' on the upper end of the base A..

On top of casing K is a removable pan L, into which the purified liquid is discharged through the apertures e 1l and from which it is conveyedrthrough spout Z. The pan L is' closed by a cover L.

The bearing of the shaft B can be lubricated by the .oiling device M, as shown.

Insmall-sized machines the yoke G and uprights H may be omitted, as also may the annulus .I and the apertures d, as a small cylinder can be readily lifted off and cleansed by hand. When a large machine is toV be cleaned, it is brought to a' standstill, the capnut I is shifted so as to close the apertures c, and band J is shifted so as to open apertures d. Then the water can be supplied to the cylinder and the impurities all driven out into the casing and withdrawn from the basin The cylinder being in rapid motion forces the water through rapidly, carrying all impurities out that has ac- .with the annulardownwardly-inclined,flanges i cu mulated. The separated impurities are caught under the flanges D', so that the liquid .being purified does not have to pass through the impurities previously separated. I preferably do` not use any filtering material, but depend upon centrifugal action.

`When the machine is used for purifying milk, it acts as a perfect aerator, the rapid motion creating a suction that removes all the .animal heat and odor from the milk. This vapparatus will extract from milk all impurities, and the centrifugal action partly breaks up the fatty globules, so that the cream will rise very rapidlyto the surface of milk which has been passed through the machine and can thereafter be readily skimmed therefromy before the milk sours.

Having thus described my invention,what VI therefore claim. as new, and desire to secure .by Letters Patent thereon, is-

l. The combination of the rotatable purifier having a conical bottom, outlets near its bottom and means forclosing such outlets, the

.cylinder tted on said bottom, and the conical top fitted on the upper end of said cylinf der having outlets at its apex, and means for .closing or varyingthearea of said outlets;

on the internal walls of the cylinder, and the vertical stirrer-blades at the lower end of the cylinder below/the flanges, and the casing in'- closing said purifier, substantially as and for thepurpose described. v

2. `The combination of the vertical rotatable purifier having a conical bottom provided l with a central hub, the cylinder fitted onto said bottom, and the conical top fitted on the upper end .of said cylinder having outlets at its apex, and the adjustable flanged nut fitted on the apex of the top and provided with apertures adapted to register with outlet-apertures in the apex ofthe top; substantially as described. y

3. The combination of the vertical rotatable purifier having a conical bottom provided with a central\hub,`the cylinder tted onto said bottom at its lower end, and the conical to'p fitted on the upper end of said cylinder having outlets at its apex; with the adjustable flanged nut fitted on the apex of the topH and provided with apertures adapted to register with outlet-apertures in the apex of the y top; and the cleansing-apertures in the lower end of the cylinder and the annular band for closing said apertures, substantially as de scribed.- e

4. The combination of the vertical rotata ble purifier having a conical bottom provided with a central hub and a peripheral flange,

the cylinder fitted into said flange at its lower end, and the conical top fitted on the upper end'jof said cylinder having -outlets at its apex, the hollow shaft passing through said top and fastened to the hub ofv the bottom, provided with fluid-outlets near its lower end, and the adjustable flanged nut fitted on the apex of the top and provided with apertures adapted to register with outlet-apertures in the apex of the top withthe cleansing-apertures near the lower end of the cylinder andv .the annular band for closing said apertures, substantially. as described.

5V. The combination of the vertical rotatable purifier having aV conical bottom provided witha central hub and a peripheral flange, the cylindertted into said flange at its lower end, and the conical top fitted on the upper end ofy said cylinder having outlets at its apex, the hollow shaft passing through said top and fastened to the hubof the base, provided with fluid-outlets near-its lower end, and the adjustable flanged nut fitted on the apex of the top` and provided with apertures the apex ofthe top; with the cleansing-apertures near the lower end of the cylinder and the annular band for closing said apertures; .theannular downwardly-inclined or concaved IOO `adapted to, register with loutlet-apertures inV f flanges on the internal Walls of the cylinder, Y'

the casing inclosing said centrifugal separator, andthe pan for receiving the liquid discharged from the upper end of, the cylinder,

forthe purpose and substantially as described.

6. In acentrifugalliquid-purifier, the combination of the base, a vertical shaft journaled in said base, the centrifugal separator on said shaft consisting of a conical bottom Cattached to said shaft and havinga peripheral iange C', a cylinder D fitted to said flange and a conical top E fitted on the upper end of the cylinder D and having a contracted apex E' provided with outlet-apertures, a hollow shaft extending through the top E and connected at its lower end to the hub of the bottom C, and provided with outlet-apertures in its lower end, the adjustable cap-nut I screwed onto the apex of the top E, and the annular impurity-retaining Iianges D', and the agitator-blades D2, within the cylinder, all substantially'as and for the purpose described.

7. In a centrifugal liquid-purifier, the combination of the base having a basin on its upper end, a vertical shaft journaled in said base and projecting above the basin, the uprights mounted on said base and the yoke supported on and detachably connected to the upper end of said uprights, the centrifugal separator supported on said shaftconsisting of a conical bottom C attached to said shaft and having a peripheral flange C', a cylinder D fitted to said flange and a conical top E tted on the upper end of the cylinder D; with an inlet-pipe journaled in said yoke Gand extending through the top E and connected at its lower end to the hub of the bottom C, and

provided with outlet-apertures in its lower end, the adjustable cap-nut I screwed onto the apex of the top E, the annular impurityretaining flanges D' and the agitator-blades D2 within the cylinder, the casing K mounted upon the basin A', and catch-panL mounted upon the casing K, all constructed and arranged substantiallyas and for the purpose described.

8. In a centrifugal liquid-purifier, the com bination of the base, having a basin on its upper end, a vertical shaft journaled in said base and projecting above the basin, the np rights mounted on said base and 'the yoke supported on and detachably connected to the upper end of said uprights, the centrifugal separator supported on said shaft consisting of a conical bottom C attached to said shaft and having a peripheral flange C', a cylinder D fitted to said flange and a conical top E fitted on the upper end of the cylinder D; with a hollow shaft journaled in said yoke G and extending through the top E and connected at its lower end to the hub of the bottom C, and provided with outlet-apertures in its lower end, the casing K mounted upon the basin A', and the catch-pan L mounted upon the casing lK, all constructed and arranged substantially as and for the purpose described. i

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

WILLIAM GOLDSWORTHYi Witnesses:

E. H. SLEIGHT, GUY R. FRAZELLE. 

